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Priority to ES0272738ApriorityCriticalpatent/ES272738A1/en
Publication of ES272738A1publicationCriticalpatent/ES272738A1/en
Improvements in the construction of lifting doors, essentially characterized by the movement of maneuver for the lifting of the doors, based on a guide of two sections forming an angle of 90º fixed one of them on the lintel of the frame and the other next to the roof, through which guide run two bolts fixed on one side of the door leaf, next to its ends, so that the door once raised does not protrude practically from the lintel of the door. (Machine-translation by Google Translate, not legally binding)
ES0272738A1961-12-061961-12-06Improvements in the construction of lifting doors (Machine-translation by Google Translate, not legally binding)
ExpiredES272738A1
(en)
Improvements in the construction of wagons in which, at least, a side wall is provided with sliding doors (Machine-translation by Google Translate, not legally binding)